國立虎尾科技大學 |

Micro/nano surface engineering for achieving extreme surface wettability.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Micro/nano surface engineering for achieving extreme surface wettability./
作者:	Beckford, Samuel G.
面頁冊數:	84 p.
附註:	Source: Masters Abstracts International, Volume: 49-05, page: 3328.
Contained By:	Masters Abstracts International49-05.
標題:	Engineering, Mechanical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1493302
ISBN:	9781124642802

Micro/nano surface engineering for achieving extreme surface wettability.
Beckford, Samuel G.

Micro/nano surface engineering for achieving extreme surface wettability. - 84 p.

Source: Masters Abstracts International, Volume: 49-05, page: 3328.

Thesis (M.S.)--University of Arkansas, 2011.

This thesis reports on the fabrication of micro and nano-textured surfaces through the use of sandblasting as well as through aluminum induced crystallization of amorphous silicon, thermal evaporation of aluminum, dip coating in polytetrafluoroethylene (PTFE) mixed with SiO2 dispersions, and deep reactive ion etching (DRIE) C4F8 passivation to change the texture and chemical composition of surfaces. These surface modifications were investigated in an attempt to produce extreme wetting properties on stainless steel and glass substrates though facile and inexpensive processes. In order to characterize these surfaces, the topography resulting from these surface modifications were analyzed through the use of scanning electron microscopy and stylus surface profiling. In addition, the wetting properties of these surfaces were characterized by water contact angle (WCA) measurement. Furthermore, the surface coefficient of friction and abrasion resistance were analyzed for sandblasted and as received glass substrates treated with C4F 8 through DRIE passivation, to identify the effect of surface mechanical modification on the durability of surface hydrophobicity. The hydrophilic stability of sandblasted stainless steel was also determined by measuring the change in WCA over 91 days. The results of these studies show that sharp nano textures produce higher WCAs than smooth nano textures. It was also established that micro textures resulting from sandblasting vastly increase the durability of highly hydrophobic surfaces coatings. Equally important, dip coating stainless steel substrates in a mixture of PTFE and SiO2 dispersions provided abrasion resistance, while also producing significantly high WCAs. Finally, the stability analysis showed that sandblasted stainless steel has a large hydrophobic recovery of approximately 71 to 92 degrees over time.

ISBN: 9781124642802Subjects--Topical Terms:

845387
Engineering, Mechanical.

Micro/nano surface engineering for achieving extreme surface wettability.
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500 $a Source: Masters Abstracts International, Volume: 49-05, page: 3328.
500 $a Adviser: Min Zou.
502 $a Thesis (M.S.)--University of Arkansas, 2011.
520 $a This thesis reports on the fabrication of micro and nano-textured surfaces through the use of sandblasting as well as through aluminum induced crystallization of amorphous silicon, thermal evaporation of aluminum, dip coating in polytetrafluoroethylene (PTFE) mixed with SiO2 dispersions, and deep reactive ion etching (DRIE) C4F8 passivation to change the texture and chemical composition of surfaces. These surface modifications were investigated in an attempt to produce extreme wetting properties on stainless steel and glass substrates though facile and inexpensive processes. In order to characterize these surfaces, the topography resulting from these surface modifications were analyzed through the use of scanning electron microscopy and stylus surface profiling. In addition, the wetting properties of these surfaces were characterized by water contact angle (WCA) measurement. Furthermore, the surface coefficient of friction and abrasion resistance were analyzed for sandblasted and as received glass substrates treated with C4F 8 through DRIE passivation, to identify the effect of surface mechanical modification on the durability of surface hydrophobicity. The hydrophilic stability of sandblasted stainless steel was also determined by measuring the change in WCA over 91 days. The results of these studies show that sharp nano textures produce higher WCAs than smooth nano textures. It was also established that micro textures resulting from sandblasting vastly increase the durability of highly hydrophobic surfaces coatings. Equally important, dip coating stainless steel substrates in a mixture of PTFE and SiO2 dispersions provided abrasion resistance, while also producing significantly high WCAs. Finally, the stability analysis showed that sandblasted stainless steel has a large hydrophobic recovery of approximately 71 to 92 degrees over time.
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